Collis Tool 71301 Split Sleeve Tapping Driver MT1

Product Description

The COLLIS TOOL 71301 is an MT1 taper shank split sleeve tapping driver designed for machine tapping operations in drill press, milling machine, and lathe applications. It accepts up to 8 tap sizes and features a 53/64-inch tap entry depth. The split sleeve design allows the driver to release the tap when the spindle reverses, protecting both the tap and the workpiece. A 3/16-inch projection and a tap shank diameter of 0.168 inches support accurate tap alignment during the threading cycle. Machinists and toolroom technicians install this driver as a direct-mount toolholder in MT1-spindle machines.

This tapping driver is suited for production and job-shop environments where machine tapping is performed on a drill press or knee mill with an MT1 taper spindle. The split sleeve compensates for minor misalignment and reduces tap breakage on through-holes and blind holes in ferrous and non-ferrous materials. Its compact projection keeps the tap close to the spindle nose for improved rigidity on short setups.

Key Features

• MT1 taper shank for direct mounting in MT1-spindle machines
• Accepts up to 8 tap sizes with 53/64-inch tap entry depth
• Split sleeve design releases tap on spindle reversal to reduce tap breakage
• Tap shank diameter of 0.168 inches with 0.131-inch tap shank square
• 3/16-inch projection for compact, rigid tap positioning

Compatibility

Designed as an OEM-style replacement or direct-use tapping driver for machine spindles with an MT1 Morse taper interface.

Installation Notes

Installation is performed by machinists or toolroom technicians. Power down and de-energize the machine spindle before mounting or removing the driver. Clean the MT1 taper bore and the driver shank with a clean cloth before seating to ensure full contact and accurate alignment. Follow the machine manufacturer's guidelines for drawbar torque and spindle lock procedure when applicable.